Yeah, forget National parks and most State parks.
The Blue Ridge Parkway is technically a National
park, but as it is surrounded by National Forest,
it is often the only practical road to use to
get to the access (fire) roads that lead to
where one would want to place hives, so one needs
their permission/approval to haul a trailer or
truckload of hives on "their" road, as no
commercial vehicles are allowed as a general rule.
...and pointing out that it is really YOUR road
won't help one bit.
Actually the rangers that patrol and enforce the
traffic laws are very nice about checking on
hive trailers, and mentioning that they saw
"nothing amiss", implying that they would give
me a shout on the VHF if they found anything
wrong. The Forest Service guys are simply
spread far too thin these days to do more than
react to situations. Both groups are so
underfunded and understaffed, it just is not
funny.